Conductivity Portable Meter ST 333

Record accurate and reliable conductivity, total dissolved solids (TDS), salinity, resistivity and temperature measurements with the ST 333 Conductivity Portable Meter, ideal for a wide range of applications and advanced conductivity analysis in the field. Obtain temperature compensated readings using linear, non-linear or EP options with 15, 20 or 25 °C reference temperatures. Log up to 1000 data point sets with time / date stamp and transfer via USB or RS232 to a printer or computer. Water proof Don’t leave your measurements to chance when analyzing samples outside the lab.ST 333 conductivity portable meters are designed to offer the reliability you need in a user-friendly package for your dedicated conductivity testing needs. This waterproof portable meter displays critical data with your measurement including temperature, date and time, read type, measurement stability, active calibration info and power source status.

Specification :

Measure conductivity, TDS, salinity or resistivity with temperature
Perform up to a five point conductivity calibration
Auto-ranging conductivity values offer consistent readings across entire measurement range without need to recalibrate
Use linear, non-linear or off conductivity temperature compensation with 15, 20 or 25°C reference temperatures
Informative, easy-to-read backlit graphic display with clear on screen instructions simplifies operation
Capture your critical readings with measurement stability indicator and selectable read modes – Auto-Read holds a stable reading and Continuous shows changing readings with hold option
Data log collects and date/time stamps up to 1000 measurement sets
Non-volatile meter memory ensures your data and settings are protected, even with loss of power
ST 333 Com software facilitates data transfer to a computer via USB or RS232 connections
Flexible power options with AA batteries or universal power adapter
IP67-rated housing is waterproof for rugged field operation
Meter kits include hard-sided field case and protective meter armor with electrode holders, adjustable wrist/belt strap and built-in meter stand
Meters offer CE, TUV 3-in-1 and FCC Class A certifications and 3-year replacement warranty

Accurate, Reliable Conductivity Measurement for Every Laboratory and Field Application

Conductivity Portable Meter ST 333 Ensure precise water quality assessment, process control, and solution analysis with our range of conductivity meters—trusted tools for measuring the electrical conductivity (EC) of liquids in laboratories, industrial plants, environmental monitoring, aquaculture, and educational settings. Designed for accuracy, durability, and ease of use, our conductivity meters deliver consistent performance across a wide range of concentrations, temperatures, and sample types.

Engineered for Precision and Flexibility

Whether you’re testing ultrapure water, monitoring boiler cycles, checking nutrient levels in hydroponics, or validating cleaning processes, our conductivity meters adapt to your needs with advanced features and robust construction.

Wide Measurement Range – From 0.01 µS/cm (ultrapure water) to 2,000 mS/cm (concentrated solutions), with auto-ranging capability.
Automatic Temperature Compensation (ATC) – Built-in sensors correct readings to standard 25°C for lab-grade accuracy.
Multiple Calibration Options – 1- to 3-point calibration with standard solutions for optimal reliability.
Durable Probes & IP-Rated Meters – Waterproof (IP67) handheld models and chemical-resistant electrodes for harsh environments.
Data Management – GLP-compliant logging, timestamped storage, and USB/Bluetooth export on select models.
Multi-Parameter Capability – Many models also measure TDS, salinity, and resistivity from the same reading.

Trusted Across Industries

Used in pharmaceutical manufacturing, wastewater treatment, food & beverage production, and research labs worldwide, our conductivity meters meet ISO, ASTM, and USP standards for quality and traceability. Their intuitive interfaces require minimal training, while rugged designs ensure longevity—even under daily use.

From benchtop precision to portable field testing, our conductivity meters give you the confidence to make data-driven decisions—quickly and accurately.

Choose a solution that grows with your application—because conductivity matters in every drop.